public class ChangeCombinations {
    public static void main(String[] args) {
        int totalAmount = 10; 

                for (int oneYuanBills = 0; oneYuanBills <= 10; oneYuanBills++) {

            int remainingAmount = totalAmount - oneYuanBills;
         
            int fiftyCentsCoins = remainingAmount * 2; 
            
            System.out.println("换 1 元纸币 " + oneYuanBills + " 张，5 角硬币 " + fiftyCentsCoins + " 个");
        }
    }
}
